Energy-Saving Tanker 'Manitou' Delivered By Lindenau Shipyard
The Paul Lindenau Shipyard in Kiel, West Germany, recently delivered the energy-saving, IMO Type II oil/chemical tanker Manitou (photo) to Atlantic-Rhederei F. & W. Joch of Hamburg. This specialized tanker is the fourth of a series that the Lindenau yard developed together with the shipping company. Built for worldwide trading and classed by Germanischer Lloyd, the Manitou has an overall length of 380 feet, beam of 51.8 feet, depth to main deck of 30.5 feet, and draft on summer freeboard of 23.5 feet. Main propulsion is provided by an MaK 6M551AK diesel engine with a maximum output of 3,500 bhp at 375 rpm. Service speed is 14 knots. A schottel bow thruster is installed for enhanced maneuverability. Electrical power is produced by three diesel-driven generators and a shaft generator.
Due to the optimal lines of the hull and the internationally patented Lindenau bulbous bow, 20 percent less propulsion power is required for this vessel compared with other oil/chemical tankers with the same draft and deadweight.
The double hull construction enclosing the cargo tanks reduces the amount of energy needed to heat the cargo due to the isolated air layer. Cargo piping and heating coils are of stainless steel. All cargo tanks are coated with Camrex Camcote epoxy. Further advantages include the easy cleaning of the tanks and quicker unloading due to the slanted form of the tank bottoms.
Electronic equipment includes two Decca radars, Decca Navigator, Anschutz gyrocompass and gyropi- lot, Atlas echo sounder, Plath radio direction finder, and Debeg radio station.
The vessel has two oil-fired boilers, and an exhaust-heat boiler that is used for preheating the heavy fuel oil, and heating water and accommodations. Under favorable conditions (high outside temperature), part of the exhaust-heat energy can also be used to heat the cargo. The vessel meets the MARPOL Convention Annex I for oil emissions and Annex II for chemical emissions, and IMO resolutions for the control of discharge of tankwashing water and ballast water from the cargo hold area.
The Manitou is equipped with a free-fall lifeboat for 26 persons. She is said to be the first oil/chemical tanker authorized to have such a lifeboat. Two inflatable liferafts are also provided, each with a capacity for 20 persons.